#pragma once
#include <iostream>
#include <string>
#include <fcntl.h>
#include <unistd.h>

#define Die(code) do { exit(code); }while(0)
#define CONV(v) (struct sockaddr*)(v)

enum ExitError
{
    USAGE_ERR = 1,
    SOCKET_ERR,
    BIND_ERR,
    LISTEN_ERR,
    EPOLL_CREATE_ERR,
    EPOLL_CTL_ERR
};

const int gdefaultsockfd = -1;
const int gbacklog = 8;

// 1.
bool ParseOneLine(std::string& str, std::string* out, const std::string &sep)
{
    auto pos = str.find(sep);
    if (pos == std::string::npos)
        return false;
    *out = str.substr(0, pos);
    str.erase(0, pos + sep.size());
    return true;
}

bool SpiltString(const std::string &header, const std::string &sep, std::string *key, std::string  *value) 
{
    auto pos = header.find(sep);
    if (pos == std::string::npos)
        return false;
    *key = header.substr(0, pos);
    *value = header.substr(pos + sep.size());
    return true;
}

void SetNonBlock(int sockfd)
{
    int f1 = fcntl(sockfd, F_GETFL);
    if(f1 < 0)
    {
        return;
    }
    fcntl(sockfd, F_SETFL, f1 | O_NONBLOCK);
}